01-04-2019, 10:15 PM
Focus Jr. Enthusiast
Join Date: Mar 2016
Location: Bremerton, WA
What I Drive: 2013 Blue SE Hatchback
FF Reputation: 2
Buy-Sell-Trade Rating: (0
Unfortunately, the aftermarket for the non-ST Focus is slim, due to the ST being the performance model.
There are a few intakes available: K&N, the MST intake tube, a few pod filter and filter shield combos, and you can also swap in the RS airbox with no further modifications. Many people remove the snorkel from behind the grill, freeing up the airbox ducts. There is a mod using a 90 degree tube from the left grill face to the bottom of the airbox where the resonator connects. The most you are likely to see from any of them is an increase in noise and throttle response. I would recommend just getting a better filter.
You can upgrade the throttle body with the OEM one from the 2.3 Ecoboost Mustangs. It bolts right up with longer bolts, and the stock intake tube fits, but it's tight. No tuning is required.
A common upgrade is the rear motor mounts, as it was made too soft from the factory and allows the engine to move quite a lot on acceleration and launches. There a few full replacements such as Cobb and Steeda, the Focus Electric rear mount which is stiffer, and there are also polyurethane inserts that push into your stock mount making it stiffer.
There are a few options for headers. OBC makes on, but it is difficult to find. There a few "Ebay" options and so far people seem to have had good luck with them. The headers from the second generation Focus do fit, but are slightly shorter, so they require some welding to make it fit the exhaust system.
There are plenty of catback exhausts on the market, I would recommend taking to Youtube to see what sounds best to you. I always liked the sound of the Flowmaster 80 series. I currently have custom 2.25 piping from the header flange to a glasspack, then out the side just in front of the driver's rear wheel. I love the sound and the volume is just right for me.
There are a few options for lowering it. You can find lowering aprings from Steeda, H&R, Eibach, and others. Performance shocks seem to be nil. Coilovers are offered from KW and Megan Racing.
There are sway bars available from Steeda and Whiteline. Steeda also makes strut tower braces.
As far as interior mods, you can find custom gauge faces from Black Cat. Audio and in-dash upgrades require some work in our cars as we dont have many options for upgrading the head unit.
The ST and RS brakes and compatible, but require 18" or larger wheels. You can find compatible wheels from many aftermarket companies, as well as from Volvos, Jags, and Maseratis and Ferraris.
These cars dont have much support for modding, but there are plenty of things you can do if you are handy and creative.